If that does not fix the problem,I'm curious if followerwander2.esp is something that alters NPCs. Not every voice pack contains everything that certain NPCs are supposed to say. If a mod changes somebody's voice pack it might result in some options failing to function properly.

the mod which lets you wear the archmages robes and morokei at the same time is stopping you from talking to some NPC's. based on my experience i took one of them off and was allowed to speak to quest npc's.

OMG thank you I went on a mod downloading spree and had to try an figure out which mod it was that was causing the problem. I just took off the hood from sneak tools and it was fixed. I did lose a hour and a half of my life that i'll never get back though.